+* The C.UTF-8 locale should be used for $wgShellLocale, if available, to avoid
+ unexpected behavior when things use local-sensitive string comparisons. For
+ example, Scribunto considers "bar" < "Foo" in most locales since it ignores
+ case.
+* $wgShellLocale now affects LC_ALL rather than only LC_CTYPE. See
+ documentation of $wgShellLocale for details.
+* $wgJobClasses may now specify callback functions
+ as an alternative to plain class names.
+ This is intended for extensions that want control
+ over the instantiation of their jobs,
+ to allow for proper dependency injection.